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1 TNM Staging System for the Oral Cavity

1 TNM Staging System for the Oral Cavity

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The oral cavity is a part of the upper aerodigestive tract that begins at the lips and ends at the anterior surface of the faucial arch. Oral cancer is an umbrella term that consists of cancers that originate in the oral tissues. The primary site of origin of oral cancers is submucous tissues, the epithelium, and minor salivary gland. Some of the o...

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... (N) staging is based on the status and size of lymph nodes. Metastasis (M) staging refers to the absence (M0) or presence (M1) of distant metastasis (Table 2.1). ...
Context 2
... survival of patients with oral and oropharyngeal cancer is strongly related to the stage of disease at diagnosis. According to 1999-2006 SEER data from the National Cancer Institute, the 5-year relative survival rate of patients with localized disease is 82.5%, and this survival rate drops to 32.2% in line with stage progression (Table 2.2). ...

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